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Definition of "Channel" |
In television, a portion of the RF spectrum 6 MHz wide which carries the audio and video carriers of the television signal. / A carrier frequency assignment, usually with a fixed bandwidth. A connection between initiating and terminating nodes of a circuit. / A band of frequencies used in radio and television transmission, especially as used by a particular station. / Channel a band of frequencies used in radio and television transmission, especially as used by a particular station. / Lowest usable frequency in radio transmission, is that frequency in the HF band at which the received field intensity is sufficient to provide the required signal-to-noise ratio for a specified time period, example, 0100 to 0200 UTC, on 90% of the undisturbed days of the month. The amount of energy absorbed by the lower regions of the ionosphere D region, primarily directly impacts the LUF. / (1) the medium along which data travel between the transmitter and receiver in a communication system. this could be a wire, coaxial cable, free space, etc. |
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